Global – October 31, 2026 -- Reserve grades at producing silver mines span from about 12.63 g/t Ag at Coeur Mining's Rochester in Nevada to roughly 867 g/t at Hecla's Keno Hill, which shows that no single threshold defines "high-grade" silver.

Fresnillo reported a 2024 silver ore grade of 468 g/t at Juanicipio, an underground operation in Mexico. Hecla's year-end 2025 Keno Hill reserves stood at 25.28 ounces of silver per ton. Rochester's 2025 proven and probable reserves come from a large-tonnage open-pit heap-leach operation.